State whether the two lines in the following problem is parallel, perpendicular or neither parallel nor perpendicular :
Through (2, -5) and (-2, 5), through (6,3) and (1,1).

State whether the two lines in the following problem is parallel, perpendicular or neither parallel nor perpendicular : through (5,6) and (2,3), through (9,-2) and (6,-5).

State whether the two lines of the following problem is parallel, perpendicular or neither parallel nor perpendicular : Through (9, 5) and (-1, 1), through (8, - 3) and (3, - 5).

State whether the two lines of the following problem is parallel, perpendicular or neither parallel nor perpendicular : Through (8, 2) and (-5, 3), through (16, 6) and (3, 15)

State whether the two lines of the following problem is parallel, perpendicular or neither parallel nor perpendicular : Through (- 2, 6) and (4, 8), through (8, 12) and (4, 24).

Classify the following pairs of lines as coincident, parallel, perpendicular or intersecting : 5x - 2y = 7, 2y -5x=-7 .

Find the equation of the line passing through (-3, 5) and perpendicular to the line through the points (2, 5) and (-3, 6).

Show that the line : through (0, 0) and (2, 3) is parallel to the line through (2, 2) and (4, 5) .

Two lines are respectively perpendicular to two parallel lines. Show that they are parallel to each other.

Find the equation of the lines through (- 2, -1) and are : perpendicular to the line y =x.